On Thu, 06 Aug 2015 15:04:10 -0400 (EDT), Cameron Seay wrote: > > I have attached 3 mod-9s to a guest where Debian is the OS. Q DASD sees > the new dasd, but of course Debian can't see it until it's in a Linux > filesystem. We don't know how to format it while in Debian. > > Any suggestions?
All steps here are performed as the root user. Step 1: cd to /etc/sysconfig/hardware. Create empty files in this directory, one per dasd device, with the touch command. Use something like touch config-ccw-0.0.xxxx where xxxx is the four-digit hexadecimal virtual device number (with leading zeros if necessary to make four digits). If the device number contains hexadecimal digits in the range A-F, make sure they are in lower case. For example: touch config-ccw-0.0.63fc touch config-ccw-0.0.63fd touch config-ccw-0.0.63fe Shutdown and reboot. The devices should now show up in the output of cat /proc/dasd/devices Step 2: Create 1 or more partitions (up to 3) on the device with the fdasd command. See the man page for fdasd for details. I usually create a single partition on each disk which occupies the entire volume. Step 3: If you are adding the new partitions to LVM2, use appropriate LVM2 commands to add the new partitions to LVM2 and enlarge the filesystem on the logical volume. I can't remember what they are because I don't use LVM2 with my Debian servers. If you want to use the partitions directly, use a file system formatter, such as mke2fs, to create a filesystem on each partition. At this point, I recommend a shutdown and reboot again. Upon reboot, udev aliases should have been created for your new partitions. Check out the pseudo-files in /dev/disk/by-uuid. Use these udev aliases in /etc/fstab to mount them. Of course, if it's a swap partition, use mkswap instead of mke2fs. Reboot again and your new file systems should be mounted. If you know what you're doing, you can avoid the reboots; but I'm trying to keep it simple (and the e-mail short). Debian doesn't use a front-end administration tool, such as yast, to do this kind of thing. You have to know the back-end commands. HTH. Debian has an s390 support e-mail list at [email protected]. The e-mail archives can be viewed at https://lists.debian.org/debian-s390/ Regards, -- .''`. Stephen Powell <[email protected]> : :' : `. `'` `- ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
